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Overhaul Maintenance Kit 903775

Part Number: 903775
Porter CableDeWALTBlack and Decker
Availability: In Stock
Price: $80.00
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*This part replaces obsolete part #: 60061.

Product Information
Specifications
Kit For: NS150A, BN125A, BN200A, BN200V12, NS100A
Name: Overhaul Maintenance Kit
Description:
It is an authentic OEM sourced overhaul maintenance kit that is specially supplied for Porter Cable nailers. This kit is the manufacturer recommended solution that will help to keep your nailer operating at its peak. Over time gaskets and seals may wear out and deteriorate eventually requiring replacement. Keeping an eye on your tools performance should let you know when its time to perform a maintenance repair. The kit includes all necessary replacement seals, o-rings and gaskets needed for overhauling top and bottom seals.
Frequently Purchased With
Products Compatibility

This item works with the following types of products:

  • • Nailer
  • • Stapler
Repair Guides
Articles:
Manufacturers provide maintenance kits for several types of tools and gas-powered machines, saving tool owners time and ...
May 14, 2010

Questions & Answers for Overhaul Maintenance Kit


In the upper part above the driver I found a 1 and 3/4 inch rubber gasket that needs to be replaced. It is flat on top and side ( top is 1/4 inch with a little bit smaller side. ) looking at the bottom of it the side is raised, resembling a hat. Where can I find replacement parts?
Ed Frye for model number RN175A asked on 2022-04-22
Hello Ed, thank you for your question. For your model the part 883837 is a 1" diameter o ring and part 897340 is 3/4" diameter. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you.
eReplacementParts Team April 22, 2022
Repair Instructions: Submitted by Customers Like You
11 of 14 people found this instruction helpful
Tool Type:
Nailer
Parts Used:
Overhaul Maintenance Kit - 903775
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Allen wrench
Wore out after10 years
Remove the top cap of the nail gun
Clean the inside of the gun
Follow the installation directions included with the kit
Install the parts
Replace the top cap
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4 of 5 people found this instruction helpful
Tool Type:
Nailer
Parts Used:
Overhaul Maintenance Kit - 903775
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
, hex wrench, oring pick, included with kit
Porter Cable BN-125A nailer leaking air from top and not throwing nails.
I used a video on eReplacementparts.com and the Porter Cable assembly drawing that came with the kit as a guide. It was good, but short on details with regard to the head/vent assembly, which turned out to be the source of my leak. I had trouble getting that spring loaded piston out because it was galled in there by a deteriorated o-ring. And when I put it back in, it stuck again. So it would be helpful to put in some better instruction on getting that piston out, redressing the cylinder surface, and reinserting the piston, making sure it moves up and down against the spring. All told, a successful repair job and very satisfied with the purchase.
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3 of 5 people found this instruction helpful
Tool Type:
Stapler
Parts Used:
Overhaul Maintenance Kit - 903775
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
, Allen wrench & pick included in kit
leaking air through top of unit
Disassembled unit and replaced each part as per instructions.
Although I only needed the top seal, I think it is wise to do the complete rebuild.
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2 of 3 people found this instruction helpful
Tool Type:
Nailer
Parts Used:
Overhaul Maintenance Kit - 903775
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
, Allen wrench
Not sinking nails
Followed the included instructions that came with the kit. It's like a new gun again.
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4 of 7 people found this instruction helpful
Tool Type:
Nailer
Parts Used:
Overhaul Maintenance Kit - 903775
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
, Allen wrench
Would not fire
Dissemble and placed on work table the way it came out. Cleaned parts and then replaced with new parts. Then reassemble. Connect to air and it fired.
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Tool Type:
Nailer
Parts Used:
Overhaul Maintenance Kit - 903775
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Wrench Set, Picks
Leaking air
Total teardown, lots of debris inside from seals that deteriorated.just followed the breakdown included w tool
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Tool Type:
Stapler
Parts Used:
Overhaul Maintenance Kit - 903775
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
, Allen wrench which was supplied
Air blowing from top when trying to staple
Make sure you take pictures of your steps. One gasket has high ridge on one side you could put in backwards if not observant. Instructions for first timers on taking out cylinder was a utuber look up, and actually saw how it was done then it was easy. Very quick delivery to my surprise, I needed it and got it.
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Tool Type:
Stapler
Parts Used:
Protective Cover - 884443
Cylinder - A00972
Nose Cushion - 897554
Overhaul Maintenance Kit - 903775
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
, Supplied Allen wrenches
Would not fire
Replaced the parts with those in the rebuild kit, also while cylinder was out replaced it. Followed the instructions in the overhaul kit.
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Tool Type:
Nailer
Parts Used:
Overhaul Maintenance Kit - 903775
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers, Allen keys
Exhaust cap broke
Replaced cap and changed seal and orings
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Tool Type:
Nailer
Parts Used:
Overhaul Maintenance Kit - 903775
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers
air leak from the top of unit. Could not drive nails
used most of overhaul kit. Did not use the trigger portion parts. Gun now works.
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Reviews
4.9
Average Rating (out of 5):
8 Reviews
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  • Repair kit PC NS 150 A stapler
    Exactly what I needed excellent customer service, friendly and very fast service good company 👍
    Guest - August 25, 2023 Verified Purchase
    Fast shipping, great service.
    The rebuild kit had everything I needed to bring it back to new. Thanks
    Guest - February 14, 2022 Verified Purchase
    Great overhaul kit. Had every thing I needed. Overhaul was easy.
    The overhaul maintenance kit arrived quickly and had every thing needed for the repair.
    Guest - September 2, 2021 Verified Purchase
    porta cable parts
    Prompt and well packed. Just what I ask for on time. Can't ask for anything more.
    Guest - May 18, 2021 Verified Purchase
    Replacement parts for Porter Cable Brad nailer
    Parts worked well. Nailer is working again!
    Guest - March 19, 2021 Verified Purchase
    Parts worked great
    Found the right parts and easy to follow directions. Brought an old friend (Staple gun) back to life. Thanks ereplacementparts.
    Guest - August 11, 2020 Verified Purchase
    Simple solution
    As described
    Guest - June 24, 2019 Verified Purchase
    All-inclusive repair kit. Everything I needed and more
    This kit solved my air leak problems without replacing the trigger parts. I probably bought more than I needed, but there is no way to know. Directions are clear, but still required U-Tube videos to help understand how to disassemble some of the pieces. Highly recommend U-Tube before you start.
    Paul - November 12, 2019 Verified Purchase
    Verified Purchase
    eReplacementParts Team
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    Product Information
    Repair Guides
    Articles:
    Manufacturers provide maintenance kits for several types of tools and gas-powered machines, saving tool owners time and ...
    May 14, 2010
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